I work at Stripe.
Many companies in travel (and similarly affected industries) are having challenges shaped similarly to yours. There is a very active conversation in the industry about what we can do about the standard process for chargebacks to support this better. (Chargebacks were never designed to be a massively high-volume simultaneous event.)
Concretely you could imagine some specific consequences of chargebacks. I don’t have anything specific that I can share as of this exact minute with respect to each of those concrete consequences, but we’re working on this very actively. A lot of this work requires coordination with other firms. Chargebacks are broadly adjudicated by banks with reference to the rules established by the card networks, so we have limited control over per-chargeback decisions, but the industry is moving quickly on trying to decide what to do about this sort of chargeback given the circumstances.
As always, we’re in the corner of companies trying to do the right thing. As you get through this, if there’s specific things we can help on, please flag them to us; we can’t promise saying yes to every request but we can promise you’ll have our attention.